The annual cycle of nest building and agonistic behaviour in captive Quelea quelea with reference to endocrine factors.
D000374:Aggression; D000818:Animals; D001522:Behavior, Animal; D001717:Birds; D006801:Humans; D008297:Male; D009425:Nesting Behavior; D010507:Periodicity; D010902:Pituitary Gland / Q000502:physiology*; D012098:Reproduction; D012621:Seasons; D013737:Testis / Q000033:anatomy & histology; D013739:Testosterone / Q000502:physiology; D013997:Time Factors
D013739:Testosterone